Prediction of 3D elastic moduli and Poisson’s ratios of pillared graphene nanostructures

Carbon ◽  
2012 ◽  
Vol 50 (2) ◽  
pp. 603-611 ◽  
Author(s):  
Sangwook Sihn ◽  
Vikas Varshney ◽  
Ajit K. Roy ◽  
Barry L. Farmer
Keyword(s):  
Elastic Moduli ◽  
Poisson's Ratios ◽  
Poisson’S Ratios ◽  
Graphene Nanostructures

Acoustic and Elastic Properties of Cu3Au Alloyin in the Field of High Temperature

2015 ◽  
Vol 770 ◽  
pp. 179-184
Author(s):  
Elena P. Tesleva
Keyword(s):  
High Temperature ◽  
Sound Velocity ◽  
Elastic Properties ◽  
Temperature Interval ◽  
Elastic Waves ◽  
Elastic Moduli ◽  
Temperature Changes ◽  
Two Component ◽  
Poisson's Ratios ◽  
Poisson’S Ratios

The article studies the elastic properties of anisotropy and interatomic anharmonicity in a two-component Cu3Au alloy with positional order-disorder within the high temperature interval of 300 К and 725 К. It provides calculations on velocities of purely transverse and longitudinal elastic waves, elastic moduli (Young’s, shear, adiabatic bulk moduli) and Poisson’s ratios based on the stiffness constants сij(T) of the crystal. Sound velocity values were employed for determining the temperature changes of Grüneisen parameter along the crystallographic directions [100], [110] and [111].

Acoustic and Elastic Properties of Cu3Au Alloy between 4.2...300 К

2014 ◽  
Vol 682 ◽  
pp. 519-524 ◽  
Author(s):  
Elena P. Tesleva ◽  
Tatiana Belkova
Keyword(s):  
Sound Velocity ◽  
Elastic Properties ◽  
Temperature Interval ◽  
Elastic Waves ◽  
Elastic Moduli ◽  
Temperature Changes ◽  
Two Component ◽  
Poisson's Ratios ◽  
Poisson’S Ratios

The article studies the elastic properties of anisotropy and interatomic anharmonicity in a two-component Cu3Au alloy with positional order-disorder within the temperature interval of 4.2 К and 300 К. It provides calculations on velocities of purely transverse and longitudinal elastic waves, elastic moduli (Young’s, shear, adiabatic bulk moduli) and Poisson’s ratios based on the stiffness constants сij(T) of the crystal. Sound velocity values were employed for determining the temperature changes of Grüneisen parameter along the crystallographic directions [100], [110] and [111].

Elastic Properties of Solid Solutions with Intermediate Valence Sm1-xYxS

2015 ◽  
Vol 770 ◽  
pp. 137-143
Author(s):  
E.G. Soboleva ◽  
A.L. Igisheva ◽  
T.B. Krit
Keyword(s):  
Elasticity Theory ◽  
Elastic Properties ◽  
Solid Solutions ◽  
Elastic Moduli ◽  
Intermediate Valence ◽  
Elastic Parameters ◽  
Valence Transition ◽  
The Given ◽  
Poisson's Ratios ◽  
Poisson’S Ratios

The given article considers acoustic analogues of elasticity theory ratios determining Poisson’s ratios of Sm1-xYxS alloy by their elastic parameters. The article discusses behavior of sound velocities, elastic moduli, Poisson’s ratios, Grüneisen parameter and brittleness-plasticity criterion ratios depending on the concentration of alloy components including valence transition from semiconductors into the metal phase.

scholarly journals Measurement of standard and off-axis elastic moduli and Poisson’s ratios of spruce and yew wood in the transverse plane

2010 ◽  
Vol 44 (3) ◽  
pp. 451-464 ◽  
Author(s):  
Jozsef Garab ◽  
Daniel Keunecke ◽  
Stefan Hering ◽  
Jozsef Szalai ◽  
Peter Niemz
Keyword(s):  
Elastic Moduli ◽  
Transverse Plane ◽  
Poisson's Ratios ◽  
Poisson’S Ratios

scholarly journals Giant negative Poisson’s ratio in two-dimensional V-shaped materials

2021 ◽  
Author(s):  
Xikui Ma ◽  
Jian Liu ◽  
Yingcai Fan ◽  
Weifeng Li ◽  
Jifan Hu ◽  
...  
Keyword(s):  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Negative Poisson’S Ratio ◽  
Two Dimensional ◽  
Auxetic Materials ◽  
Negative Poisson's Ratio ◽  
Poisson's Ratios ◽  
Poisson’S Ratios

Two-dimensional (2D) auxetic materials with exceptional negative Poisson’s ratios (NPR) are drawing increasing interest due to the potentials in medicine, fasteners, tougher composites and many other applications. Improving the auxetic...

Continuum Description of the Time- and Strain-Dependent Poisson’s Ratio of Ligament Under Finite Deformation

2013 ◽  
Author(s):  
Aaron M. Swedberg ◽  
Shawn P. Reese ◽  
Steve A. Maas ◽  
Benjamin J. Ellis ◽  
Jeffrey A. Weiss
Keyword(s):  
Large Scale ◽  
Mechanical Response ◽  
Tensile Deformation ◽  
Large Strain ◽  
Fiber Direction ◽  
Strain Behavior ◽  
Nonlinear Stress ◽  
Poisson's Ratios ◽  
Poisson’S Ratios ◽  
Strain Dependent

Ligament volumetric behavior controls fluid and thus nutrient movement as well as the mechanical response of the tissue to applied loads. The reported Poisson’s ratios for tendon and ligament subjected to tensile deformation loading along the fiber direction are large, ranging from 0.8 ± 0.3 in rat tail tendon fascicles [1] to 2.98 ± 2.59 in bovine flexor tendon [2]. These Poisson’s ratios are indicative of volume loss and thus fluid exudation [3,4]. We have developed micromechanical finite element models that can reproduce both the characteristic nonlinear stress-strain behavior and large, strain-dependent Poisson’s ratios seen in tendons and ligaments [5], but these models are computationally expensive and unfeasible for large scale, whole joint models. The objectives of this research were to develop an anisotropic, continuum based constitutive model for ligaments and tendons that can describe strain-dependent Poisson’s ratios much larger than the isotropic limit of 0.5. Further, we sought to demonstrate the ability of the model to describe experimental data, and to show that the model can be combined with biphasic theory to describe the rate- and time-dependent behavior of ligament and tendon.

Carbon nanotube films change Poisson’s ratios from negative to positive

2010 ◽  
Vol 97 (6) ◽  
pp. 061909 ◽  
Author(s):  
Yin Ji Ma ◽  
Xue Feng Yao ◽  
Quan Shui Zheng ◽  
Ya Jun Yin ◽  
Dong Jie Jiang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Poisson's Ratios ◽  
Poisson’S Ratios ◽  
Nanotube Films
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